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Perhaps you did but I don't recall anyone pointing out anything as stunning as a 1/2 wave shape in a 1/4 wave radiator before. To you it's just another anomaly in the model because you're not understanding there are a pair of currents on the cone forming this pattern. EZNEC only shows you one.

Theory has a good deal of meaning behind what we see in CST and suggests you should be quicker to discredit the software that can't produce results that can be replicated in the field rather than the program that is teaching you things you haven't seen before.

We have to get over the "how is this possible" because were are years past this point now. You see it with the best software modeling tool available and I see it when only a 90 degree phase shift is required to bring another 1/2 wavelength into a constructive phase on the collinear test. In this case both the CST model and field tests agree there is 90 degree phase shift already taking place in the stock antennas radiated pattern.

The 1/2 wave pattern on a 1/4 wave radiator is only possible if certain conditions are met. First off, it is totally impossible to form if the cone only had one current present. It takes two RF currents on the radiator to make this pattern AND they must be separated in phase by 90 degrees so that their current nulls overlap at both ends and come to a minimum. It's actually very sensible once you understand what's happening.

Opinions are acceptable when they don't contradict fact. It's not sensible to assume we can pick up 2dbd because of a few feet in height. The free space tests completely eliminates any chance of a height variable skewing the results. Unfortunately what you think in this matter is irrelevant since it doesn't line up with anything that works.

<blockquote data-quote="Shockwave" data-source="post: 497265" data-attributes="member: 10882">Perhaps you did but I don&#039;t recall anyone pointing out anything as stunning as a 1/2 wave shape in a 1/4 wave radiator before. To you it&#039;s just another anomaly in the model because you&#039;re not understanding there are a pair of currents on the cone forming this pattern. EZNEC only shows you one.&nbsp;&nbsp;Theory has a good deal of meaning behind what we see in CST and suggests you should be quicker to discredit the software that can&#039;t produce results that can be replicated in the field rather than the program that is teaching you things you haven&#039;t seen before.&nbsp;We have to get over the &quot;how is this possible&quot; because were are years past this point now. You see it with the best software modeling tool available and I see it when only a 90 degree phase shift is required to bring another 1/2 wavelength into a constructive phase on the collinear test. In this case both the CST model and field tests agree there is 90 degree phase shift already taking place in the stock antennas radiated pattern.&nbsp;The 1/2 wave pattern on a 1/4 wave radiator is only possible if certain conditions are met. First off, it is totally impossible to form if the cone only had one current present. It takes two RF currents on the radiator to make this pattern AND they must be separated in phase by 90 degrees so that their current nulls overlap at both ends and come to a minimum. It&#039;s actually very sensible once you understand what&#039;s happening.&nbsp;&nbsp;Opinions are acceptable when they don&#039;t contradict fact. It&#039;s not sensible to assume we can pick up 2dbd because of a few feet in height. The free space tests completely eliminates any chance of a height variable skewing the results. Unfortunately what you think in this matter is irrelevant since it doesn&#039;t line up with anything that works.</blockquote>

[QUOTE="Shockwave, post: 497265, member: 10882"] Perhaps you did but I don't recall anyone pointing out anything as stunning as a 1/2 wave shape in a 1/4 wave radiator before. To you it's just another anomaly in the model because you're not understanding there are a pair of currents on the cone forming this pattern. EZNEC only shows you one. Theory has a good deal of meaning behind what we see in CST and suggests you should be quicker to discredit the software that can't produce results that can be replicated in the field rather than the program that is teaching you things you haven't seen before. We have to get over the "how is this possible" because were are years past this point now. You see it with the best software modeling tool available and I see it when only a 90 degree phase shift is required to bring another 1/2 wavelength into a constructive phase on the collinear test. In this case both the CST model and field tests agree there is 90 degree phase shift already taking place in the stock antennas radiated pattern. The 1/2 wave pattern on a 1/4 wave radiator is only possible if certain conditions are met. First off, it is totally impossible to form if the cone only had one current present. It takes two RF currents on the radiator to make this pattern AND they must be separated in phase by 90 degrees so that their current nulls overlap at both ends and come to a minimum. It's actually very sensible once you understand what's happening. Opinions are acceptable when they don't contradict fact. It's not sensible to assume we can pick up 2dbd because of a few feet in height. The free space tests completely eliminates any chance of a height variable skewing the results. Unfortunately what you think in this matter is irrelevant since it doesn't line up with anything that works. [/QUOTE]

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